| Column $- I$ | Column $- II$ |
| $(A)$ Root mean square speed of gas molecules | $(P)$ $\frac{1}{3} \mathrm{n} m \bar{v}^{2}$ |
| $(B)$ Pressure exerted by ideal gas | $(Q)$ $\sqrt{\frac{3 \mathrm{RT}}{\mathrm{M}}}$ |
| $(C)$ Average kinetic energy of a molecule | $(R)$ $\frac{5}{2} \mathrm{RT}$ |
| $(D)$ Total internal energy of $1$ mole of a diatomic gas | $(S)$ $\frac{3}{2} \mathrm{k}_{\mathrm{B}} \mathrm{T}$ |


